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A hydrodynamic lifting method and its performance testing method

A hydrodynamic and performance technology, applied in hydraulic models, hydraulic engineering, hydraulic engineering equipment, etc., can solve problems such as limited effects, and achieve the effect of enhancing water flow exchange capacity, improving hydrodynamic conditions, and improving river hydrodynamic conditions.

Active Publication Date: 2021-10-08
NANJING HYDRAULIC RES INST
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] Most of the existing technologies use water diversion and drainage to control and improve the hydrodynamic conditions of the river. Occasionally, independent or series submersible pumps are used to improve the hydrodynamic conditions, but the effect is limited

Method used

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  • A hydrodynamic lifting method and its performance testing method
  • A hydrodynamic lifting method and its performance testing method
  • A hydrodynamic lifting method and its performance testing method

Examples

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Embodiment Construction

[0077] In this example, the ten-thousand-person sandy beach of Meishan Waterway is taken as the research object of weak hydrodynamic area. Meishan Waterway is located in the northwest of Meishan Island, Beilun District, Ningbo City. The Meishan Waterway was originally a tidal channel, with an average tidal range of 3.0m and an average flow velocity of about 0.3-0.5m / s. From 2012 to 2016, two north-south embankments were built at both ends of the waterway. After the two dikes were closed, the waterway The internal water power has been greatly weakened, and there are more than ten inland rivers around the waterway for drainage, which has caused increasingly prominent water environment problems in the waterway. The site of Wanwan Beach is located on the north side of the South Embankment of Meishan Waterway, starting from the vicinity of the Meishan Red Bridge in the north and reaching the South Embankment in the south. The beach is generally arc-shaped, with a total length of abo...

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Abstract

The invention discloses a hydrodynamic lifting method, which includes S1, if the hydrodynamic lifting requirement is to increase the hydrodynamic force of the edge of the weak hydrodynamic area, placing several water pump jet flow thrusters at intervals on the edge of the weak hydrodynamic area; S2, if the water The demand for power improvement is to increase the hydrodynamic force in the center of the weak hydrodynamic area, then place a vertical axis thruster in the center of the weak hydrodynamic area; A suspended wave maker is placed in the center of the weak area. The invention also discloses two performance test methods of the method, one is to use a physical scale-down model, and the other is to use a mathematical model to carry out numerical simulation. The hydrodynamic lifting method of the present invention can achieve multi-purpose hydrodynamic lifting, and the test method adopted also accurately quantifies the improvement effect of the weak hydrodynamic area after the method is run, so as to operate the hydrodynamic device scientifically and economically and improve the hydrodynamic force of the river Conditions provide the basis for decision-making.

Description

technical field [0001] The invention relates to water conservancy technology, in particular to a hydrodynamic lifting method and a performance testing method thereof. Background technique [0002] The running water does not rot, and the door hinge does not moth. In recent years, the natural hydrological conditions of many rivers have been artificially changed, resulting in significant changes in the hydrodynamic conditions of the rivers; especially the construction of too many gates and dams, although it is conducive to improving the utilization efficiency of water resources, it is easy to cause hydrodynamics in some areas of the river. The conditions have been greatly weakened, and the exchange capacity of water bodies is poor, which is not conducive to the migration and diffusion of pollutants in the rivers, which intensifies the pollution of water bodies and affects people's production and life. In order to meet people's needs for the living environment, improving the hy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B1/00E02B1/02G06F30/28G06F30/23G06F113/08G06F111/10
CPCE02B1/00E02B1/02
Inventor 陈求稳陈天宇林育青朱立俊陈诚冯然然胡柳明刘东升樊兆航唐磊何梦男
Owner NANJING HYDRAULIC RES INST
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